Cut the sides of my floor down today after reading the various threads on the correct line to take,
I cut from tight in at the rear of the chassis out to the bulk head, test fitted the body with the ratchet straps and it has pulled in lovely and feels really rigid just with the straps.
At the front the gap has closed in but may take a fine bit of fettling just to draw the body in a bit closer to the chassis side rail on the drivers side.
http://sammio-spyder.blogspot.com/.
Managed to fabricate a bracket to hang the handbrake pivot from, not pretty but does the job.
Psychopops